Home / 653,724.12-902,177.82-492,294.36

Finding the Fourth Proportional to 653,724.12, 902,177.82 and 492,294.36

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Solution

The fourth proportional to 653,724.12, 902,177.82 and 492,294.36 is: 679,395.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,724.12 : 902,177.82 = 492,294.36 : x
  2. Step 2: Convert to fraction form
    653,724.12/902,177.82 = 492,294.36/x
  3. Step 3: Cross multiply
    653,724.12x = 902,177.82 × 492,294.36
  4. Step 4: Simplify right side
    653,724.12x = 444,137,052,503.10
  5. Step 5: Solve for x
    x = 444,137,052,503.10/653,724.12
  6. Step 6: Final answer
    x = 679,395.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.